Fortinet FortiVoice 200D - Dhcp Lease-Clear

Fortinet Technologies Inc. Page 121 FortiVoice 200D/200D-T v2.0 MR1 CLI Reference
dhcp lease-clear
Use this command to clear all DHCP address leases.
Syntax
For IPv4:
execute dhcp lease-clear
For IPv6:
execute dhcp6 lease-clear